I guess i'm one of the lucky ones.. I got a new next lazer and this thing could not cut any better, however i was running the Ex extreme blades and on weedy wet lawns it would clump like crazy mainly while cutting crabgrass.. Did a simple blade change ( high lift notched) and the quality of cut is back. I cut all differnt types of lawns mostly fescues and alot of sod no problems, especially sod leaves an awesome cut. Like i said i guess i'm a lucky one..